Nothing works unless the person on the receiving end thinks you really care about them as a person. If you actually care about the person you are giving feedbac

Nothing works unless the person on the receiving end thinks you really care about them as a person. If you actually care about the person you are giving feedback to it doesn't matter what you say or do as any approach works (from mere grunting to hours long love-ins). If you don't care then nothing works - that is unless you are one of those rare people who can fake it well.